Metaxas, A., D. E. Karageorgiou, G. Varvarousis, T. Kotis, M. Ploumidis, and G. Papanikolaou. “GEOLOGICAL EVOLUTION - STRATIGRAPHY OF FLORINA, PTOLEMAIDA, KOZANI AND SARADAPORO GRABEN”. Bulletin of the Geological Society of Greece, vol. 40, no. 1, June 2007, pp. 161-72, doi:10.12681/bgsg.16502.